this derivation will be built:
  /nix/store/k1z389jpxf6i2ribjgf81272kz6a2syg-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/k1z389jpxf6i2ribjgf81272kz6a2syg-bcachefs-module-7.0.0-30-generic.drv'...